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JOURNALS // Problemy Fiziki, Matematiki i Tekhniki (Problems of Physics, Mathematics and Technics) // Archive

PFMT, 2022 Issue 3(52), Pages 61–66 (Mi pfmt859)

This article is cited in 1 paper

PHYSICS

Features of the kinetics of polymers electron-beam dispersion under laser assisted conditions

M. A. Yarmolenko, A. V. Rogachev, A. S. Rudenkov, A. M. Mikhalko

Francisk Skorina Gomel State University

Abstract: Analytical description of the process of charging the polymer target surface by electron beam influence under laser assisted conditions is presented. The results were used to interpret the kinetic dependences of the electron beam dispersion of PMMA, PET, PTFE under laser assist influence $\lambda = 532$ nm and $\lambda = 266$ nm. The effect of the assist radiation wavelength on the kinetic parameters of dispersion was determined. The conclusion is made about the dominant effect of the photoinitiated electron emission caused by laser radiation influence during the electron beam dispersion of PMMA. The main effect of laser radiation during the electron beam dispersing of PTFE is an additional photochemical effect. The effect of the assist radiation wavelength on the PET dispersion kinetics is explained by the different nature of the effect; the main influence of photoelectron emission under the influence of radiation with $\lambda = 266$ nm and photochemical changes under the action of radiation with $\lambda = 532$ nm.

Keywords: polymers, electron beam dispersion, laser assistance, surface charging, photostimulated electron emission.

UDC: 537.533.7:621.793.18:678.746.47

Received: 11.07.2022

DOI: 10.54341/20778708_2022_3_52_61



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